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+# Long-term Memory
+
+This file stores important information that should persist across sessions.
+
+## User Information
+
+- User works with Mars spatial data and imagery analysis
+- Interested in Martian geological features (craters, dunes, deltas)
+- Uses both spatial queries and semantic search for Mars imagery
+- Developer of a digital Mars platform with natural language interface
+
+## Platform Context
+
+- **Assistant Role**: Mars Digital Assistant (火星数字助手) for digital Mars platform
+- **Mission**: Enable users to complete map operations and platform functions through natural language instead of traditional keyboard/mouse
+- **Frontend Code**: Located at `~/studio/mars-frontend-vue/`
+- **Vision**: User plans to continuously improve MCP and Skill tools to enable all platform functions through natural language
+
+## Preferences
+
+- Uses Chinese language for Mars data queries
+- Prefers detailed geological analysis and feature descriptions
+- Interested in scientific value and geological evolution of Martian features
+- Natural language interaction style for all operations
+
+## Project Context
+
+### Available MCP Tools
+
+**Mars-MCP Tools (Data Query):**
+- `spatiotemporal_search` - Basic spatial range query for Mars imagery
+  - Parameters: spatial (lat_min, lat_max, lon_min, lon_max), product type
+  - Returns: image ID, filename, path, coordinates, capture time
+  
+- `spatiotemporal_semantic_search` - Spatial + semantic search using natural language
+  - Returns images with similarity scores (cosine similarity 0-1) and detailed visual descriptions
+  - Supports queries like "撞击坑" (craters), "沙丘" (dunes), "三角洲" (deltas)
+
+**Map-MCP Tools (Visualization):**
+- `map_zoom_to` - Fly to specified Mars coordinates (lon, lat, altitude)
+- `map_get_viewport` - Get current map viewport information
+- `map_draw_bbox` - Draw bounding box and fly to region
+- `map_render_footprints` - Render GeoJSON footprint data
+- `map_clear` - Clear AI-drawn content
+- `map_get_drawn_geometry` - Get hand-drawn geometry
+- **Note**: No layer switching capability available
+
+### Data Sources
+
+- **Tianwen-1 MoRIC imagery** (`tianwen_moric`): High-resolution Mars imagery from Chinese Tianwen-1 mission
+  - Resolution: ~230 meters/pixel
+  - Image path format: `/mars_data/tianwenmoric_stamp/...`
+  - Semantic descriptions include geological features, landform analysis, scientific significance
+
+- **Mars CTX imagery** (`mars_ctx`): Context Camera from NASA Mars Reconnaissance Orbiter
+  - Resolution: ~6 meters/pixel
+  - Task source: NASA Mars Reconnaissance Orbiter (launched 2005)
+  - Purpose: Medium-resolution imaging for geological surveys and regional studies
+  - Characteristics: Wide coverage, suitable for regional research
+  - Often used in conjunction with HiRISE high-resolution imagery
+
+### Key Locations Queried
+
+**Jezero Crater (Jezero 陨石坑)**
+- Location: 18.4°N, 77.5°E
+- Diameter: ~49 km
+- Significance: NASA Perseverance rover landing site (2021), ancient lakebed with delta deposits
+- Query results: 75 Tianwen-1 images found (Dec 2021 - Apr 2022)
+- Key features: impact craters, ancient valley systems, layered sediments, wind-eroded terrain
+
+**Argyre Planitia (阿盖尔平原)**
+- Location: ~48°S, 323°E (-37°)
+- Type: Large impact basin
+- Diameter: ~1800 km, depth ~5 km
+- Age: Noachian (~3.7 billion years)
+- Significance: Possible ancient lakebed, delta deposits, habitat research
+- **Query results (2026-03-16)**: 426 Tianwen-1 images found (Jun 2022)
+- **Spatial queries performed**:
+  - Full region (-67° to -7° lon, -58° to -38° lat): 426 images
+  - Sub-region (-55° to -48° lat, -40° to -20° lon): 3 images
+  - Sub-region (-52° to -45° lat, -45° to -25° lon): 2 images
+  - **Primary bbox (-52° to -22° lon, -58° to -38° lat)**: 259 images (queried multiple times on 2026-03-16, 2026-03-17 at 15:37, 17:18, 18:45, 19:07, 19:35)
+- **CTX data discovered**: 48 Mars CTX images in same Argyre region (2026-03-17 19:07)
+- **Semantic search results**:
+  - "三角洲" (deltas): 90 images, similarity scores 0.3258, 0.3071, 0.3044
+  - "古湖床" (ancient lakebed): 102 images, similarity scores 0.371, 0.3583
+  - Note: Some semantic descriptions showed anomalies (orange geometric placeholders)
+- **Bounding boxes drawn**:
+  - First: (-67°, -58°) to (-7°, -38°) - 2026-03-16
+  - Second: (-52°, -58°) to (-22°, -38°) - 2026-03-17 (drawn and queried 5+ times)
+- **Map operations (2026-03-17)**: Multiple flights to coordinates (-37°, -48°) at various altitudes:
+  - Ground level altitude (~1km) at 15:34
+  - 7,810 km at 15:36
+  - 10,279 km at 17:30
+  - 10,260 km at 17:34
+  - 13,260 km (failed due to timeout) at 17:30
+  - 12,007 km (North Pole) at 19:34
+  - 14,987 km (before North Pole flight) at 19:33
+
+**North Pole (北极点)**
+- Location: 0° lon, 90°N
+- Query date: 2026-03-17 18:44, 18:59, 19:06, 19:34
+- Flight altitudes: 4,038 km, 19,653 km, 9,886 km, 12,007 km
+- Features: Mars North Polar Cap (water ice and CO2 ice), ~1,000 km diameter
+
+**South Pole (南极点)**
+- Location: 0° lon, 90°S
+- Query date: 2026-03-17 19:04
+- Flight altitudes: 4,218 km
+- Features: Mars South Polar Cap, ~350 km diameter (permanent), up to 1,000 km (seasonal)
+
+**Global View (全球视野)**
+- Location: -0.395° lon, -6.3716° lat (equatorial region, southern hemisphere)
+- Query date: 2026-03-17 19:44
+- Flight altitude: 26,673 km (highest recorded in session)
+- Status: Global overhead view of entire Mars surface
+
+### Known Issues
+
+- Map-MCP 3D view initialization can fail intermittently (error: "3D 视图未初始化")
+- Semantic search similarity scores vary by feature prevalence in region (e.g., "dunes" scored 0.27, "craters" scored 0.45)
+- Browser connection issues can occur intermittently (timeout errors, 15s timeout encountered on 2026-03-17 at 17:30)
+- Some semantic descriptions in Argyre Planitia results showed anomalies (orange geometric placeholders instead of geological descriptions)
+- **Map-MCP viewport bbox coordinates frequently return global bounds (-180 to 180) instead of actual view** (confirmed multiple times on 2026-03-17, including 19:44)
+- Argyre Planitia bbox (-52°, -58°) to (-22°, -38°) drawn and queried 5+ times with consistent 259 results
+- Map altitude parameter is not always preserved during flights (actual altitude may differ from requested)
+
+## Important Notes
+
+- Semantic search similarity scores: higher is better (1.0 = perfect match), but scores vary by feature abundance
+- Visual descriptions from semantic search include detailed geological analysis (features, landforms, scientific significance)
+- Map altitudes used: 100km (detailed view), 4000+km (regional overview), 10,000-23,000km (global/regional)
+- Map-MCP viewport bbox coordinates frequently return global bounds (-180 to 180) instead of actual view - persistent issue
+- Argyre Planitia data is primarily from June 2022 Tianwen-1 observations
+- Some semantic descriptions may be incomplete or anomalous (placeholders)
+- Primary Argyre Planitia bbox for repeated queries: (-52°, -58°) to (-22°, -38°), returns 259 Tianwen-1 images + 48 Mars CTX images
+- Browser timeout issues can interrupt map operations (15s timeout)
+- North Polar Cap composition: water ice and CO2 ice, ~1,000 km diameter
+- South Polar Cap: ~350 km diameter permanent, up to 1,000 km seasonal expansion
+- Highest recorded altitude: 26,673 km at global view (2026-03-17 19:44)
+- Assistant is a Mars Digital Assistant enabling natural language interaction for all platform operations
+- Frontend code repository: `~/studio/mars-frontend-vue/`
+
+---
+
+*This file is automatically updated by nanobot when important information should be remembered.*